21145817

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{5843}}^1$

素因数の和:5908

約数の個数: 16

約数和(自身を含む): 26929152

約数和(自身を除く): 5783335

約数列:

[1, 7, 11, 47, 77, 329, 517, 3619, 5843, 40901, 64273, 274621, 449911, 1922347, 3020831, 21145817]

約数ペア:

[(1, 21145817), (7, 3020831), (11, 1922347), (47, 449911), (77, 274621), (329, 64273), (517, 40901), (3619, 5843)]